Harmonic elimination in diode-clamped multilevel inverter using evolutionary algorithms |
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Authors: | Said Barkati Lotfi Baghli El Madjid Berkouk Mohamed-Seghir Boucherit |
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Affiliation: | 1. Laboratoire d’analyse des Signaux et Systèmes (LASS), Université de M''sila, BP. 166, rue Ichbilia 28000 M''sila, Algeria;2. Groupe de Recherche en Electrotechnique et Electronique de Nancy (GREEN), CNRS UMR 7030, Université Henri Poincaré Nancy 1, BP. 239, 54506 Vandoeuvre-lès-Nancy, France;3. Laboratoire de Commande des Processus (LCP), Ecole Nationale Polytechnique, BP. 182, 10 Avenue Hassen Badi, 16200 El Harrach, Alger, Algeria |
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Abstract: | This paper describes two evolutionary algorithms for the optimized harmonic stepped–waveform technique. Genetic algorithms and particle swarm optimization are applied to compute the switching angles in a three-phase seven-level inverter to produce the required fundamental voltage while, at the same time, specified harmonics are eliminated. Furthermore, these algorithms are also used to solve the starting point problem of the Newton-Raphson conventional method. This combination provides a very effective method for the harmonic elimination technique. This strategy is useful for different structures of seven-level inverters. The diode-clamped topology is considered in this study. |
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Keywords: | Multilevel inverter Harmonic elimination Genetic algorithms Particle swarm optimization |
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